Water-heater.



J. R. CREAWIER.

WATER HEATER.

APPLICATION FILED NOV.2fi. 1915.

2 SHEETS-SHEET I.

W M M & P

INVENTOR WITNESSES 1. R. CREAMER,

- WATER HEATER.

APPLICATION FILED NOV.26, 1915 Patented Apr. 23, 1918.

2 SHEETS-SHEET 2.

WITNESSES UNl @[Tlil WANT h ll l@ht JOHN BOSS CREAMEPJ, OF PHILADELPHIA,PENNSYLVANIA, ASSIGNOB, T0 VESTA MANUFACTURING COMPANY, OF PHILADELPHIA,PENNSYLVANIA, A CORPUBA- TION OF NEW JERSEY.

WATER-HEATER.

Original application filed December 23, 1914, Serial No. 878,667.

To all whom it may concern Be it known that 1, JOHN Ross CREAMER, acitizen of the United States, residing in the city and county ofPhiladelphia, State of Pennsylvania, have invented a new and usefulNater-lrleater, of which the following is a specification.

My invention consists of a water heater employing gas as fuel, in whichthe gas for the burner is controlled by the water admission valve sothat the fuel cannot be admitted to the burner until the water has beenadmitted into the heating coil, and is a division of an applicationfiled by me on December 23rd, 1914, Serial #878,667, for a gas heater.

It further consists of means for controlling the burner valve to preventthe same from being opened when the pilot-burner is closed.

It further consists of other novel features of construction, all. aswill be hereinafter fully set forth.

The annexed drawing and the following description set forth in detailone mechanical form embodying the invention, such de tailed constructionbeing but one of various mechanical forms in which the principle of theinvention may be used.

Figure 1 represents an end elevation of my improved Water-heater.

Fig. 52 represents a longitudinal vertical section of said heater.

Similar numerals of reference indicate corresponding parts in thefigures.

Referring to the drawing, the reference numeral 1 indicates an outercasing or jacket the walls 2 of which are double and have anon-conducting packing 3 of asbestos, mineral. wool or similar material.The top of said casing has a double head 4: having a non-heat-conductingpacking 5 formed with an opening 6 communicating with a chamher 7 havingan outlet 8 for the exit of smoke and waste-products from the heatingchamber within the casing. A plurality of horizontal pipe coils 9 aresupported longitudinally within the casing one coil above the other andhaving their contiguous sides intermeshing and the end convolution ofthe uppermost coil extends by a vertical pipe 10 to the open. bottom ofthe casing where it extends horizontally to the opposite end ofSpecification of Letters Patent.

Patented Apr. 23, 191%.

Divided and this application filed November Serial No. 63,482.

the casing and through the same forming an inlet heating pipe 11. Theends of the pipe coils are alternately connected with the ends of theadjoining coils so that the water ad mitted to the upper coil will passthrough the same and the connected inter-meshed and superposed coils,the end of the lower of which coils is connected to an outlet pipe 12,in the end of the casing, by a horizontal pipe 13 below the horizontalinlet heating pipe and extending at the end of the casing opposite tothe inlet pipe. An open gutter 14 is supported below the lowermost pipecoil and has adrip-pipe 15 discharging into a removable open pan 16supported below the open bottom of the casing. A burner chamber 17 issupported below the open bottom of the casing and the coil and hasburner nipples 18 upon its upper side directing flames upward into thecasing and against the coils and the Waste-products escape at the top ofthe casing. A mixing chamber 19 is connected to the feed pipe 20 of theburner and is connected to a valve casing 21 having a transverserotatable valve-plug 22 controlling the gas supply. A suitableair-damper 23 provided for controlling supply of air into said mixingchamber. The plug 22 of the gas valve has a radially projecting handle25 having a transverse plate 26 at its end and said handle closes thevalve when turned downward. The horizontal inlet pipe 11 is connectedoutside the casing through a pipe 36 with a valve casing 27 the plug '28of which is coaxial with the plug of the gas-valve and has a radiallyprojecting handle 29 upon its in ner end upon which is a transverseplate 30, the inner end of which overlaps and engages the inner end ofthe plate upon the gas valve handle. A pilot light pipe 31 is connectedto a valve casing 32 having a plug 33 and extends beneath the burner andsaid casing is connected to the gas-pipe by a branch pipe 34. The pilotplug is supported between and at a right angle to the inner ends of thewater and gas valve plugs and has a laterally projecting handle 35 whichcloses the pilot-valve when its handle is tilted in front of the handleof the gas valve and opens said valve when tilted out of the way of thegas valve handle.

in practice, when the water inlet and gas lea inlet are com ected,respectively, to a water first turned upward and the light at the p tpipgn ted}. T e at r l e han i new tilted outw rd and; upwa dm t: tingwater into the heating coils. The upward move of the handle for thepilot-valve and the outward move of the handle of the .watenvalve will.admit of the handle of the gas-valve being tilted outward and upwardopening thesame to the burner when the gas will be ignited by thepilot-light. The water in the coils will be heated by the flames fromthe burner and may be drawn asrequired. As the coils convey the water ina comparativelysmall; diameter body and in a tortuous course, presentinga comparatively large heating surface, the water will be quickly heatedto a high degree of temperature and will be continually heated as hotWater is withdrawn. at the discharge end of the pipe-coils. The inletand outlet of the water passing through the horizontal pipes immediatelyabove the burner, the heated water will besubjected to the high.- esttemperature when enteringand leaving the heater and passing through thehorizon tal superposed coils and exposed to the heat and-products ofcombustion from the burner, will be exposed to the direct action of theburner-flame during its entire passage through the heater.

When the operation of the heater is stopped, the handle of the gas-valveis tilted down and said valve closed and the flame extinguished. Thehandle of the water-valve can now be tilted down to close thewater-valve and the overlapping inner end of its cross-plate will bearagainst the inner end of the cross'plate of the gas-valve and preventthe same from being opened. The pilot valve will also lock the gas-valvehandle if the pilot burner is turned 01?, so that: the gas cannot beturned on when no wateris admitted to the coils and no burning out ofthe dry heating coils. can. be caused. The, heating coils are preferablyformed from copper, brass or similar good heat conducting metal ofsuffi'cient strength to resist the interior. steam-pressure generated inthe coils,

The outer casing having the walls filled with asbestos or, other heatnon-conductive material will cause practically all heat from the burnerto beutilized for heating the coils and water therein and will retainhot waterin the coils at high temperature after the burner has beenturned off.

The gas cannot be lighted; nor stay lighted excepting when thewater-valve is open and the coils filled, as closing the water-valvewill close the gas-valve by the plates upon the valve-handles engagingand one carrying the other with it, so there can be no burning out ofthe coils as the water must be turned on before the burner can belighted.

Any leakage from the coils and any moisture which collects upon thecoils will drop down upon the lower coil and thence drop into thelongitudinal gutter from which itis conducted to the pan beneath theburner by the drip-pipe, so that no moisture can collect in the heatingchamber and corrode the metallic elements when the heater is not inoperation.

Other modes of applying the principle of my invention may be employedfor the mode herein explained. Ghange may therefore be made as regardsthe mechanism thus disclosed, provided the principles of constructionset forth, respectively, in the following claim are employed.

Having thus described my invention what I claim as new and desire tosecure by Letters Patent, is:

The combination in a water heater, of heating coils, a gas burner,vertically di sposed water and gas pipes, valves laterally disposed insaid pipes and in axial alinement, with their handles extendingdownwardly when the valves are closed, overlapping members on saidhandles to prevent the gas valve opening prior to the opening of thewater valve, :1 pilot for the burner, and a pilot valve disposed betweensaid water and gas valves and rotatable in a plane at substantiallyright angles to the plane of rotation of the water and gas valves and soarranged that its handle will prevent opening of the gas valve the pilotvalve.

' JOHN ROSS CREAMER.

Witnesses:

C. D. MoVAY, M. E. BYRNE.

Gopiesofi: this patentmay, be obtained for five cents each, byaddressing the Commissioner of- Patents, Washington, D. G.

prior to the opening of

